Plant hole digger



FIG. 1 is a left side perspective view taken from the front sowing my new design;

FIG. 2 is an enlarged front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side view thereof, opposite of FIG. 3;

FIG. 6 is a plan view; and,

FIG. 7 is a bottom view.

The broken line showing of handles is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a “plant hole digger,” as shown and described. 